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Finding the Fourth Proportional to 19.48, 26.87 and 14.02

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Solution

The fourth proportional to 19.48, 26.87 and 14.02 is: 19.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.48 : 26.87 = 14.02 : x
  2. Step 2: Convert to fraction form
    19.48/26.87 = 14.02/x
  3. Step 3: Cross multiply
    19.48x = 26.87 × 14.02
  4. Step 4: Simplify right side
    19.48x = 376.58
  5. Step 5: Solve for x
    x = 376.58/19.48
  6. Step 6: Final answer
    x = 19.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.